Crash with opcache_reset() under high load in fpm

Description

The following code:

<?php
class T {
}

new T;
opcache_reset();

Executed under php-fpm with the following fpm configuration (save this as custom.conf):

[global]
error_log = /dev/stderr

[www]
listen = 127.0.0.1:9000
pm = static
pm.max_children = 10

Ran using: valgrind ./php-fpm -F -y custom.conf with opcache enabled.

Put under load with: ab -c 24 -n 200000 http://localhost/index.php

Resulted in this output:

==150641== Process terminating with default action of signal 6 (SIGABRT)
==150641==    at 0x4CCDE44: __pthread_kill_implementation (pthread_kill.c:44)
==150641==    by 0x4C75A2F: raise (raise.c:26)
==150641==    by 0x4C5D4C2: abort (abort.c:79)
==150641==    by 0x4C5D3DE: __assert_fail_base.cold (assert.c:94)
==150641==    by 0x4C6DC66: __assert_fail (assert.c:103)
==150641==    by 0x702B6D: zend_gc_delref (zend_types.h:1228)
==150641==    by 0x70317D: zend_string_release_ex (zend_string.h:332)
==150641==    by 0x708F6E: _php_stream_open_wrapper_ex (streams.c:2291)
==150641==    by 0x6E412B: php_stream_open_for_zend_ex (main.c:1564)
==150641==    by 0x6E407E: php_stream_open_for_zend (main.c:1552)
==150641==    by 0x7B538F9: persistent_stream_open_function (ZendAccelerator.c:2520)
==150641==    by 0x8514F6: zend_stream_open (zend_stream.c:88)

And some similar crashes, also got one crash on time in zend_accelerator_util_funcs.c in ZSTR_SET_CE_CACHE_EX(ce->name, ce, 0);.

But I expected this output instead:

Obviously not that

PHP Version

8.2

Operating System

No response

Reproduisez l’échec avec php-fpm, opcache, Valgrind et la commande de charge ab fournie. Commencez par les frames de pile signalées dans ZendAccelerator.c, zend_accelerator_util_funcs.c, streams.c et zend_types.h, puis suivez les chemins du crash. C’est terminé lorsque la charge de travail ne s’interrompt plus et produit la réponse attendue.